本文整理汇总了Python中zipline.pipeline.Pipeline.show_graph方法的典型用法代码示例。如果您正苦于以下问题：Python Pipeline.show_graph方法的具体用法？Python Pipeline.show_graph怎么用？Python Pipeline.show_graph使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类zipline.pipeline.Pipeline的用法示例。
在下文中一共展示了Pipeline.show_graph方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_show_graph
# 需要导入模块: from zipline.pipeline import Pipeline [as 别名]
# 或者: from zipline.pipeline.Pipeline import show_graph [as 别名]
def test_show_graph(self):
f = SomeFactor()
p = Pipeline(columns={'f': SomeFactor()})
# The real display_graph call shells out to GraphViz, which isn't a
# requirement, so patch it out for testing.
def mock_display_graph(g, format='svg', include_asset_exists=False):
return (g, format, include_asset_exists)
self.assertEqual(
inspect.getargspec(display_graph),
inspect.getargspec(mock_display_graph),
msg="Mock signature doesn't match signature for display_graph."
)
patch_display_graph = patch(
'zipline.pipeline.graph.display_graph',
mock_display_graph,
)
with patch_display_graph:
graph, format, include_asset_exists = p.show_graph()
self.assertIs(graph.outputs['f'], f)
# '' is a sentinel used for screen if it's not supplied.
self.assertEqual(sorted(graph.outputs.keys()), ['', 'f'])
self.assertEqual(format, 'svg')
self.assertEqual(include_asset_exists, False)
with patch_display_graph:
graph, format, include_asset_exists = p.show_graph(format='png')
self.assertIs(graph.outputs['f'], f)
# '' is a sentinel used for screen if it's not supplied.
self.assertEqual(sorted(graph.outputs.keys()), ['', 'f'])
self.assertEqual(format, 'png')
self.assertEqual(include_asset_exists, False)
with patch_display_graph:
graph, format, include_asset_exists = p.show_graph(format='jpeg')
self.assertIs(graph.outputs['f'], f)
# '' is a sentinel used for screen if it's not supplied.
self.assertEqual(sorted(graph.outputs.keys()), ['', 'f'])
self.assertEqual(format, 'jpeg')
self.assertEqual(include_asset_exists, False)
expected = (
r".*\.show_graph\(\) expected a value in "
r"\('svg', 'png', 'jpeg'\) for argument 'format', "
r"but got 'fizzbuzz' instead."
)
with self.assertRaisesRegexp(ValueError, expected):
p.show_graph(format='fizzbuzz')